History, quark model and the SU(3)-symmetry

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Concepts • in electron-proton scattering experiments the electrons are relativistic and the process is e + p → e′ + • for the kinematics we use the four-momentum and the energy-momentum relation leads to the invariant mass x Simela Aslanidou 14.12.2006
Concepts invariant mass W² c² = P + q ² W = ( ) invariant = mass M² c² • elastic scattering = W → 2M • inelastic scattering > M → 2 ; + 2Pq ν M ν − Q² = = W Mν − Q² > + 0 q² Pq M 0 = M² c² + 2Mν − Simela Aslanidou 14.12.2006 Q²
Page 1 and 2: QCD History, quark model and the SU
Page 3 and 4: History • up to the beginning of
Page 5 and 6: History • 1950´s Robert Hofstadt
Page 7 and 8: History • both, Gell-Mann and Zwe
Page 9 and 10: History • the method of the exper
Page 11: Concepts The proton is an extended
Page 15 and 16: Inelastic scattering Displaying the
Page 17 and 18: Inelastic scattering d² σ dΩdE
Page 19 and 20: Quarks Existence of Quarks there is
Page 21 and 22: Quark model Problems • non-observ
Page 23 and 24: Necessity of the colour Quarks are
Page 25 and 26: Colour • in 1965 O.W.Greenberg in
Page 27 and 28: Colour The additive colour model Si
Page 29 and 30: Quark model • why are there three
Page 31 and 32: Simela Aslanidou 14.12.2006 Quark m
Page 33 and 34: Ratio of the cross section Comparis
Page 35 and 36: Gluons • gluons are the gauge bos
Page 37 and 38: SU(N) • group of the non-abelian
Page 39 and 40: SU(3) Why SU(3)-flavour? With the S
Page 41 and 42: The Baryon-Oktet Start from the fun
Page 43 and 44: References T. Muta, World Scientif

History, quark model and the SU(3)-symmetry

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